1998 TOYOTA LAND CRUISER sensor

2004 LAND CRUISER (EWD548U)
165
The automatic light control system works when the light control SW is turned to AUTO. The automatic light control sensor
detects the brightness around the vehicle. By this function, the system automatically turns the taillight and headlight on if the
brightness is below the regular level and turns the taillight and headlight off when the surroundings become brighter than the
regular level.
Body ECU
11, 12-Ground : Always approx. 12 volts
22-Ground : Approx. 12 volts with ignition SW at ACC or ON position
10-Ground : Approx. 12 volts with ignition SW at ON or ST position
4, 16-Ground : Always continuity
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
A3170C1670M5A71
A4770F1568M9B71
B7A70J371R671
B9C70J971
:Junction Block and Wire Harness Connector
CodeSee PageJunction Block and Wire Harness (Connector Location)
1B24Engine Room No 2 Wire and Engine Room J/B (Engine Compartment Left)1C24Engine Room No.2 Wire and Engine Room J/B (Engine Compartment Left)
2B28Engine Room No.2 Wire and Cowl Side J/B LH (Left Kick Panel)
2E28Dash Wire and Cowl Side J/B LH (Left Kick Panel)
2Q30Instrument Panel Integration Wire and Cowl Side J/B LH (Left Kick Panel)
3D40Dash Wire and Cowl Side J/B RH (Right Kick Panel)3E40Dash Wire and Cowl Side J/B RH (Right Kick Panel)
3Q42Instrument Panel Integration Wire and Cowl Side J/B RH (Right Kick Panel)
4A52Dash Wire and J/B No.4 (Instrument Panel Center)
5B56Dash Wire and J/B No.5 (Behind the Combination Meter)
5D56Engine Room No.2 Wire and J/B No.5 (Behind the Combination Meter)
:Connector Joining Wire Harness and Wire Harness
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IF178Instrument Panel Integration Wire and Instrument Panel Wire (Left Side of Instrument Panel)
II380Dash Wire and Column Wire (Near the Ignition SW)II580Dash Wire and Column Wire (Near the Ignition SW)
IM280Instrument Panel Integration Wire and Instrument Panel No.3 Wire (Right Side of Instrument Panel)
IU382Instrument Panel Integration Wire and Dash Wire (Behind the Glove Box)
:Ground Points
CodeSee PageGround Points Location
IF78Set Bolt of Cowl Side J/B LHIG78Set Bolt of Cowl Side J/B LH
II78Set Bolt of Cowl Side J/B RH
System Outline
Service Hints

2004 LAND CRUISER (EWD548U)
168Multiplex Communication System (Communication Bus)
IU3 15
IL3 1E
EC 26
31
T 5J14A 11
IY2 11
8
P18B 14
BA4 11
8
P19B 16
BC4 11
8
P20A 24
IC2 11
7
P12A 23
22
C263
T 7 ID4 19 IV492G4
2Q 7
3F 73Q 37
3D 41 B 7(
A)
, B 8(
B)
, B 9(
C)
B SB
W SB B
W
W
W
B
B
BSB BBW
W W
W
MPX3 MPX4 MPX5 MPX6 MPX1 MPX2
MPX1 MPX1 MPX1 MPX1 MPX1 MPX2 MPX1
(
w/ Side Air bag)
Center Airbag
Sensor Assembly Power Window
Master SW Power Window
Control SW
Fro nt RHPower Window
Control SW
Rear LHPower Window
Control SW
Rear RH Th eft
Deterr ent
ECUTilt and
Telescopic
ECU Body ECU
Junction
Connector

2004 LAND CRUISER (EWD548U)
177
B 7(
A)
, B 8(
B)
, B 9(
C)
Auto
Low
High
Flash
OFF
ON
Di mmer SW Fog
Light
SWLight Control
SW
OFF
Tail
Head
SB G- O
R- Y R- B
R- W
L- YSBII5 4
II3 3IU3 5IU317 IU318 IU316
A A C CC 2C6C21 C 4
CLTS CLTB CLTE436 11 10 17 1613 14 12 8J 9
A31
J13
A A
II 3E 35 3D83D10H HH 7J 3
J10 C16B
CB
G- Y
R- L
W- B
R- Y
SB
Y
R
BR SBSB SB SB R- YR- Y
Y
R
BR R- W
G- B
G- O
R- B
R- Y
Y W- B
W- B
W- B
HU CLTS CLTB CLTE
W- B
SB
R- Y
SB
L- Y G- B
SB
W- B
Automatic Light
Control Sensor Combination SWBody ECU
Junction
Connector
Junction
Connector
Junction
Connector
Junction
Connector
C
C
Junction
Connector J 6
IM2 3 IM2 1 IM2 2
IH2 3

2004 LAND CRUISER (EWD548U)
179
B 7(
A)
, B 8(
B)
, B 9(
C)
IL3 8
3Q 82
3B 4
EA2 6
2 1
EAIL3 7
63B 84 3Q
1
E 3
T 1
IL3 3
IU3 147. 5A
SECURITY From Power Source System
(
See Page 94)
3E 16 3Q 72 IL3 14
Z 1
SB
L- YSB
R- Y
SB
L- YSB
R- Y
W- BSB L- W34 1 11 2DSWH SH- GBS +B1
L- B
W
Y- G
LG SB
SB
SB
SB
LG
SB L- B
W
Y- G L- B W- B
T 5
LG
2 1
SB L- WSB
W- B * 1 : w/ Navigation System
* 2 : w/o Navigation System
Engine Hood
Courtesy SW
Theft Deterrent Horn
Theft Deterrent ECU Body ECU
10IG
IL3 15
B
12 31
R- B
MPX1
SB
KSW
IL3 9IL31
E EIU3 15C 26
SB
SB B
MPX3
J14
Junction
ConnectorB- W
SB
Option Connector
(
Glass Breakage Sensor)

2004 LAND CRUISER (EWD548U)
188Multiplex Communication System
B 7(
A)
, B 8(
B)
, B 9(
C)
DoorBeam C12(
A)
, C13(
B)
, C14(
C)
, C15(
D)
D 11 D12 D13 D14 A 7A10 D 9D10 A3 A 5B8 93Q 19 3EC 12
IU3 3C 11
SB
SB
SB
SB
SB
SB SB7. 5A
PANEL Fr om Power Source System
(
See Page 94)
1B 63
83 2Q 11 2B
SB
SB SB
SBSB
SB
SB
GG- Y R- Y
DCY2 DRLP
SB
SB
IX1 6
EB1 10D 15
13
2
SB R- G
R- G
BR R- L
Buzzer Combination Meter
Body ECU
Vehicle Speed Sensor
(
Combination Meter) V 2
W- BW- B SB
SB Speedometer

2004 LAND CRUISER (EWD548U)
190Multiplex Communication System
B 7(
A)
, B 8(
B)
, B 9(
C)
B2Q 70
BA 13
18 2K 10 2G
BU1 3
BM2 5
2
BM2 4
BU1 1 SB
W- L
G- W3E 21
3E 26 3D13
4A 8
4A 17C 5
Multi- Display
A 15
10 5C15B
J14IU3 4
IF1 4C 18
5
TC
R 6
B G G- W G- W
G G G W- B W- B W- B
BSB
TC DBKL ELS1 SPD
14
SB
SB
W- L W- L
W- L W- L
ACAN
Rheostat Body ECU
Junction Connector
Center Airbag
Sensor Assembly
3 1Buckle SW LH B 5 GW- L
Radio and Player
64B
W- B

2004 LAND CRUISER (EWD548U)
191
B 7(
A)
, B 8(
B)
, B 9(
C)
2G 8
2B 6 14 A
2G 4
2Q 7 23 A
3Q 37
3F 73D41
22
MPX2
C263
MPX1
T 7 1B 38
1A 40
4
L
G 12L 9
2
PWS
M 2
IF IG
B- O
B
BB
SBB
B
416 L MPX2 PWS GND1 GND2
L
21
(
w/ Side Airbag)
Center Airbag
Sensor Assembly GeneratorMoon Roof Control
ECU
Tilt and
Telescopic ECUBody ECU
3
G- W
2D 35STPI
B- O
EE1 215A
STOP From Power Source System (
See Page 94)
2D 31
1 2
G- R Stop Light SW S 5

2004 LAND CRUISER (EWD548U)
192Multiplex Communication System
The multiplex communication system communicates among the body ECU, theft deterrent ECU, power window master SW,
power window control SW front RH, power window control SW rear LH, power window control SW rear RH, center airbag
sensor assembly and tilt and telescopic ECU, among the combination meter, engine control module, A/C control assembly
and gateway ECU and controls the following systems according to the signals from respective sensors or switches.
For details, please refer to the new car features and/or the repair manual.
Body ECU
11, 12-Ground : Always approx. 12 volts
22-Ground : Approx. 12 volts with ignition SW at ACC or ON position
10-Ground : Approx. 12 volts with ignition SW at ON or ST position
4, 16-Ground : Always continuity
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
A3170D1872J1471
A45A70D1972J2272
A47C70D2072M272
B272D2172M5A71
B372D2272M9B71
B472D2372P169
B574D2472P873
B7A70D2772P1273
B8B70E368P1473
B9C70E8D70P1573
C12A70E9E70P1673
C13B70F168P1773
C14C70F268P1873
C15D70F1072P1973
C1670F1172P2073
C2670F1568R671
D2A68G168R2773
D3B68G470S571
D770H169T169
D1072H269T571
D1172H369T771
D1272H469T1071
D1372J371U171
D1472J671V269
D1572J971V673
D1672J1071V773
D1772J1371Z171
System Outline
Service Hints